Edge curling device



Oct 8, 1935. E. e. SEASTROM 2,017,013

EDGE cuRLING DEVICE Filed 001;. 23, 1954 I s Sheets-Sheet 1 nnnnnlt n 'ihiii.

I v I v I [r/X' GJeas7r0m mWd-Mm Oct. 8, 1935. SEASTRQM j 2,017,018

EDGE CURLING DEVICE Filed Oct. 25, 1934 I s Sheets-Sheet 2 6'2 fi v III7 74 men V600 A a .3 [n]? G 6290677001.

Oct. 8, 1935. E. e. SEASTROM ,0

EDGE CURLING DEVICE Filed Oct. 23, 1934 s Sheets-sheet 3 i Qy-Ja 1 x 2 p 2 65 Zrv'k 6 Seagfro/n Patented Oct. 8, 1935 PATENT OFFICE EDGE CURLING DEVICE Y Erik Gunnar Seastrom, Easton, Pa., assignor vto Individual Drinking Cup Company, Inc.,

Easton, Pa., a corporation of Pennsylvania Application October 23, 1934, Serial No. 749,672

18 Claims.

My invention relates to new and useful improvements in a device for curling the edge of a receptacle or container and more particularly the edge of a paper container or receptacle such as a ,sundae dish or the like and has for its principal oloject the provision of a device of the character described which is relatively simple in construction and operation and while in the drawings I have shown it as manually operated it will be understood that, if desired, it might be mechanically operated in suitable manner.

Another object of the invention resides in the provision of a device of the character described including a support or holder for the receptacle or container, the edge of which is to be curled, a

clamp adapted to engage intericrly of the receptacle or container for clamping the same in the support or holder while the edge is being curled, a vertically movable member carrying segmental curling irons, and means for heating the irons whereby the curl is set.

A further object of. the invention" consists in supporting the segmental curling irons so that they may be slid radially to follow the angle of the wall of the container or receptacle, means being provided to positively slide the segmental curling irons in opposite directions as the supporting or carrying member therefor.is moved upwardly or downwardly.

A still further object of the invention resides in the provision of novel means for ejecting the container or receptacle from itsholder or support, after its edge has been curled, said ejecting means being operated as the member or" support carrying the curling irons is moved into its normal raised position.

With the above rid tother objects in view, which will appear as the-description proceeds, my invention consists in t "e novel details of construction, and arrangement of parts, described in the following specification and illustrated in the accompanying drawings, and while I have illustrated and described the preferred embodiments of the invention, as they now appear to me, it will be understood that such changes may be made as will fall within the scope of the appended claims.

In the drawings:

Fig. l is a side elevation with parts broken away.

' Fig. 2 is a front elevation with parts broken away.

Fig. 3 is a vertical section on the line3-3 of Fig. 1.

Fig'. 4 is a vertical section on the line 4- of Fig. 1.

Fig. 5,is a' detail showing in side elevation the normal relative positions of the clamping member for the receptacle or container and the curling irons.

Fig. 6 is a horizontal section, with parts re- 5 moved, showing a bottom plan of the curling irons and guides therefor.

Fig. 7 is a top plan of the clamping member.

' Fig. 8 is an edge view of thelmember shown in Fig. 7." 10 Fig. 9 is a detail, in vertical section, showing I the clamping member in engagement with the receptacle or container with the curling irons raised and not in engagement with the edge of the container or receptacle. 15 Fig. 10 is a detail showing in vertical section, and partly in elevation, the clamping member in engagement with the receptacle or container and the curling irons in engagement with the edge of the receptacle or container to make the 29 initial curl. I

Fig. 11 is a view similar to Fig. 10 showing the curling irons in their final positions and the edge of the container or receptacle curled.

Fig. 12 is a top plan of one of the curling irons; 25

and

Fig. 13 is a front elevation of the curling iron shown in Fig. 12.

In the drawings I. indicates a table, bench, orv other suitable support, having adjacent what may 30 be termed its forward edge, a rearwardly extending elongated opening 2 over which is positioned and secured, in any desired manner, an elongated base plate 3 having adjacent its rear end an upwardly directed sleeve or socket 4 in which is 35 positioned and supported the lower end of an upwardly extending post or standard 5. Adjacent its forward end the base 3 is provided, in its upper face, with a recess or depression 6 and extending from the lower surface is a depending sleeve 1 40 with an opening '8 extending through the base plate and sleeve and in which is operable a .rod 9 provided at its lower end with the enlarged head or flange I0 on the upper surface of which is engaged and supported an end of a coiled spring 45 I I, the opposite end of the coiled spring engaging I the under surface of the base plate 3 and surrounding the depending sleeve 1. The rod 9-is provided with the longitudinally extending opening l2 terminating adjacent its upper end in an 50 enlarged opening I 3 which is interlorly threaded as shown at ll to receive the screw l5 which secures to the upper'end of the rod a plate l6 or head which may be termed an ejector plate for a purpose to be later described. The screw I5 is 55\ provided with a restricted opening l1 at its upper surface which communicates with an enlarged opening |3 which extends through the shank of the screw as shown more particularly in Fig; 4

of the drawings. Surrounding the rod 9 between the upper surface of the base plate 3 and the lower surface of the plate or head I3 is a sleeve l9 which limits the downward movement of the rod 9, under action of the coil spring H by contact of the lower surface of the plate or head IS with the upper end of the sleeve l9, as shown more particularly in Fig. 4 of the drawings. g Y

Secured to the base plate 3, by means of the screws 29 or other suitable fastenings, with its lower end received in the recess of the base plate 3, is a cylindrical member 2| forming a holder or support for the container or receptacle to be curled as well as a cylinder in which operates the plate or head l3 carried by the rod 9. At its upper end the inner wall of the cylindrical member 2| is downwardly and inwardly beveled or inclined as shown at 22 and below this beveled or inclined surface the inner wall of the member 2| is straight as shown at 23 to provide the cylinder for the head or plate l6 carried by the rod 9.

The inclined or beveled surface 22 forms a seat for the receptacle or container to be curled and such a receptacle or container is shown in position in Figs. 9, 10 and. 11 of the drawings, this receptacle or container including an inclined. side wall 24 and bottom 25, the receptacle or container when in position having its side wall 24 in contact with the beveled or inclined surface 22 with its bottom 25 in engagement with the upper surface of the screw l5, as shown more particularly in Fig. 9 of the drawings. An air trap is prevented as a receptacle or container is dropped into the upper end of the cylindrical member 2| as the air will pass through the restricted opening I1 and the opening l9 in the screw l5 and then out through the openings I 3 and I2 formed in the rod- 9. This permits the receptacle or container to-be properly seated with its side wall 24 in close contact with the beveled surface 22 and its bottom in supporting contact with the upper surface of the screw l5.

Adjustably connected to the post or standard 5, by means of the set screw 23 or other suitable fasteningis a collar 21 having the transversely spaced forwardly directed ears or lugs 23 for a purpose which will be later described. Surrounding the post or standard 5, abovethe collar 21, and with its lower end bearing on the. collar is a coiled spring 29.

A verticallyslidable carriage is shown .at 33 and is provided with the vertically spaced horizontally extending upper and lower arms 3| and 32 each of which is provided with an openin through which the post or standard 5 passes, as shown more particularly in Fig. 1 of the drawings, the arm 32 being positioned on the post or standard beneath the collar 21 while the upper arm 3| is positioned above and engaged by the upper end of the coiled spring 29. This coiled spring 29 normally holds the carriage in its raised position, The carriage is provided with an e portion 34 which operates between the tra yersely spaced lugs or projections 28 on the co ar through an opening 36 formed in the base plate 3 as well as through the opening 2 formed in the support I. At its lower end the arm 35 is provided with the lateral extension 31 which projects beneath and engages the enlargement or 5 5 head portion III of the'rod 9 to normally hold the rod 9 with the head or plate l6 carried thereby in raised position with the spring I I under tension and the upper surface of the head or enlargement III in engagement with the lower end of the 10 depending sleeve 1. The carriage 33 is further 'the recess 43.

Pivotally connected at 42, to the collar 21 is one end of a link 43, the opposite end of the link being pivotally connected at 44 to what might go be termed the inner end of a lever 45 which in turn is pivotally connected at 46, intermediate its ends, to the carriage. By the collar 21 being connected to the post or standard 5 it will be seen that as the outer end of the lever 45 is pulled 25 downwardly through means of the pivotal connection 45 the carriage will be moved downwardly on the post or standard 5 against the action of the coiled'spring 34.

Carried by and depending from the enlarged to end 39 of the horizontal arm 33 is the curling iron support indicated generally at a and the receptacle or container clamp indicated generally at b. The curling iron support a includes a top portion 41, a depending marginal flange 49, an upwardly directed circumferential flange 49, and an up *wardly directed hollow shank or sleeve 50 interiorly threaded at its upper end as shown at 5| to receive the exteriorly threaded shank of a cap 52' whichconnects the curling iron support to the enlarged end 39 of the arm 38. A channel 53 is formed between the upwardly directed circumferential flange 49 and the upwardly directed hollow shank or sleeve 53 to form a seat for the lower end of a coiled spring 54, the coiled spring surrounding the shank or sleeve 53 with its upper end engageable with the top of the recess 43. Theupwardly directed circumferential flange 43 slides in the opening in the bottom of the enlarged end 39 and the support a is adapted for sliding movement relative to the arm 33 and en-- larged end 39, the coiled spring 54 normally holding the support in its lowermost position.- Removably secured to the depending flange .43 by means of the screws or other suitable fasten- 55 ings is a plate 59 having the central opening 51, the plate supporting within the recess formed by the depending flange 43 a heating unit indicated at 53. thisheating unit having a central opening 59 aligned with the opening 51 for a purpose to which will be later apparent. On its bottom surface the plate 55 is formed with the circumferentially spaced radially extending grooves 33 in which are received the keys 6| secured to the plate by means of the rivets 62 or other suitable 65 fastenings. As shown more particularly in Fig. 6 of the drawings the grooves 63 extend from the outer marginal edge of the plate to the center opening 51. Around the outer marginal edge of the plate 55, between the grooves 60, are the depending flange portions 63 while around the inner marginal edge of the plate and between the grooves 33, are the depending flange portions 34, these flange portions 63-.and 34 with the keys 3| providing recesses to receive projecting portions 2,017,018 of curling irons to be later described. It will be noted by reference to the drawings that the grooves 68 are of greater depth than the height of the flange portions 63 and 64 and that the keys 6| received in the grooves 60 have their lower surfaces flush with the lower surfaces or the lower edges of the flange portions 63, as shown more particularly in Fig. 5 of the drawings.

The curling irons are segmental in form and one of the segments is shown in detail in Figs. Y12 and 13 of the drawings. Each of the segments is provided with an elongated opening 65 positioned at the bottom and intermediate the ends of an elongated groove 66 formed in the upper surface of the segment, the grooves 66 of the segments receiving the keys 6| and permitting sliding movement of the segments relativeto the curling iron support and more particularly the plate 56 thereof. Adjacent the forward edge or the wider portion each of the segments is provided with the downwardly extending inwardly inclined teeth 61 while at the rear end or narrow end each of the segments. is provided with the downwardly extending inwardly inclined projection 68 for a purpose which will be later brought out. In its under surface, each of the segments is provided with a curling groove 69 which receives the edge of the container or receptacle and curls the same as shown more particularly in Figs. 10 and 11 of the drawings as the curling iron support is lowered. The segments are secured to the plate 56 by means of the ring 10 and screws H, the ring engaging the under surfaces of the segments while the screws pass through bushings 12 received in the elongated opening 65 and through the keys 6| with their threaded ends engaged in threaded openings in the plate .56.

' This arrangement is quite clearly shown in Figs.

9, l0 and 11 of the drawings.

At 13 I have illustrated a lead in to the heating unit 58. It will be understood that the ring 10 does not so tightly engage the segments as would prevent sliding movement thereof but instead the segments are adapted for sliding movement in a manner which will be presently brought out.

The receptacle or container clamp b includes a plate 14 having the central threaded opening 15 to receive the threadedend of the rod 16 which is provided, adjacent its upper end, with an elongated opening 11 to receive a transversely extending pin I8 which in turn is connected to the upwardly extending shank or sleeve 50 of the curling iron support a. One end of a coiled spring 19 bears against the upper end of the rod 16 with its upper end received inthe shank portion of the cap 52 and bearing against the cap. This coiled spring 19 normally forces. the rod 16 downwardly so that the pin 18 engages the upper end of the elongated opening 11. Formed around the outer marginal edge of the plate I4 are the upwardly directed outwardly inclined teeth 80 which mesh with, or in other words are received between the downwardly and inwardly directed teeth 61 of the curling iron segments. Received on the threads of the rod 16, and engaging the upper surface of the plate 14 is. a socket member 8|, the inner wall of which .is downwardly a d inwardly tapered as shown at 82 and adapted 0 receive the downwardly extending projections 68 of the curling iron segments 0 as shown more particularly in Figs. 3, 9, 10 and 11 of'the drawings. Also received on the threads of the rod 16, and in spaced relation to the socket member 92, is 'a wedge member 83 held in position by the lock nut 84. This wedge member 83 is adapted to engage the outer inclined faces of the downwardly extending projections 68 of the curling iron segments 0 and to slide the same outwardly and to hold them in their normal outward position.

. When the clamp b is held stationary, in a manner and for a purpose to be later described, and the curling iron support continues its downward movement thesocket member 8| receiving the downwardly extending projections 68 of the curling iron segments 0 will draw the segments inwardly, as shown more particularly in Figs. and 11 of the drawings. Perforations 85 are formed in the plate 14 of the clamp b to permit air to pass through the plate as the clamp is lowered into engaging positiorrwith the receptacle or container to be curled.

From the above it is thought that the detailed construction will be clearly understood and I will now endeavor to more in detail bring out the operation. Normally the parts are in the posi- 20 tions shown in Figs. 1 and 2 of the drawings the coiled spring 29 holding the carriage 38 with its associated parts in raised position with the lateral extension 31 of the depending arm 35 holding the rod 9 and its associated head or plate in raised position against the action of the coiled spring I I. The receptacle or container of which the edge I is to be curled is placed in the holder or support 2| with the side wall thereof in engagement with the beveled or inclined surface 22 and its bottom in contact with the screw l5 carried byfthe rod 9 and which connects the head or plate l6 to the rod. With the receptacle or container in such po- 'the" same downwardly. .Through means of the pivotal connection 46 the carriage 30 is lowered against the action of the coiled spring-29 and by downward movement of the carriage lowers the lateral extension 31 and releases the same from the enlargement or flange H) of the rod 9 and 40 the coiled spring ll thereby forces the rod and its associated head or plate l6 downwardly and in turn allows the container or receptacle to further enter the mouth of the holder or support 2|. Further lowering of the carriage 30 brings the clamp member indicated at b in engagement with the inner surface of the side wall 24 of the receptacle or container and thereby securely clampslo'r'holds the receptacle or container in the holder or support 2|. As the receptacle or con.- 5 tainer is placed in the holder or support air therebeneath will pass out through the openings l1 and 8. of the screw l5 and through the passages l3 and I2 of the rod 9. thereby preventing an air trap which would prevent proper seating of the recepta le or container within the holder or support. At the same time air which might be trapped in the receptacle or'container as the clamping member is lowered will pass through the openings 85 formed in the plate 14 of the clamp. With the clamp in tight engagement with the receptacle or container, as shown more particularly in Fig. 9 of the drawings, a further lowering of the carriage 30 will cause movement of the curling iron support a independent of the clamp b. Normally the coiled spring 19 holds the rod 16 in lowered position with the wedge member 83 engaging the downwardly directed projection 68-'of the curling irons c and forces the curling irons outwardly and holds'them in the position shown more par- 70 ticularly in Figs. 3 and 9 of the drawings. As the curling iron support a is lowered relative to the clamping member b the downwardly directed extension 68 of the curling iron 0 will ride into the socket member 8| and due to the incline of said extension 68 and the incline-or bevel 82 of the socket member 8! will draw. the curling irons or segments inwardly so that as the curling iron support, with the curling .irons or segments is lowered the teeth 81 will follow the angle of the wall of the container or receptacle and the incline bevel 22 oil the support or holder 2|. As the curling iron support is lowered as thus describedthe upper edge of the container or receptacle will follow the angle or the downwardly projecting teeth 61 and ride into the grooves 69 oi. the irons or segments c and receive an initial curl as shown in Fig. of the drawings. A further downward movement will slide or draw the curling irons or segments c inwardly to a greater distance and give the edge of the receptacle or container a flnal the wedge member 83 then the clamping member to the edge oi! the container.

curl as shown more particularly in Fig. 11 of the drawings. After the clamping member b has engaged the receptacle or container to clamp the same in the holder and the curling iron support is lowered relative thereto the downwardly and inwardly directed extension 68 will move away from the wedge member 83 thereby permitting the irons or segments 0 to be drawn or slid inwardly,

as previously described, it being understood that the clamping member b being held stationary the wedge member 83 will in turn be held in a stationary, position due to the fact that it is carried by the rod 16 which is connected to the clamping member 17. After the edge of the receptacle or container has been curled the lever 45 maybe re-,

leased and the coiled spring 29 will raise the carrier 30 to its original or normal position and as the carriage is raised the curling iron support a will initially have an upward movement independent of the clamping member I) and the downwardly and inwardly directed extension 68 will again come into operative engagement with the wedge member as which will force or slide them outwardly into their original position shown more particularly in Figs. 3 and 9 of the drawings. After this engagement of the extensions 68 with b willbe raised with the curling iron support a, as'a unit therewith, and assume its original position shown more particularly in Figs. 1 and 2 of the drawings. It will be understood that the curling irons or segments 0 will slide on the keys 6| said keys acting as guides to maintain the irons or segments in their proper positions for operation. The heating unit 58' acts to heat the curling irons and aids in setting the curl.

From the above it will be seen that I have provided a relatively simple construction adapted to be' easily manually operated but, as previously stated, the operation may be mechanical if desired. The clamping member b is connected to the curling iron support to be operated as a unit therewith and simply by operation of the lever 45, or other mechanical means, the carriage will be lowered to initially bring the clamping member into engagement with the wall of the receptacle or container previously positioned in the holder or support and then bring the curling irons into engagement with the edge or the receptacle to curl the same as has been set forth. As the carriage 30 is raised'into its initial position the lateral extension 31 will engage the enlarged head or flange ill on the rod 9 and raise the same against the action or the'coiled spring H and as the 'rod is raised it will carry with it the head or plate l5 and such raising movement will raise and loosen the receptacle or container from the holder or support to permit its ready removal therefrom. The. cfoiled spring 54 after the curling irons have reached their ilnal 5 movement or positions as shown in Fig. 11. It will be appreciated that it such limited or yielding movement was not permitted there would be a possibility of breaking parts it the lever II was further operated after the parts had reached 10 the positions shown in Fig. 11.

Having fully described my invention what I claim as new and desire to secure by Letters Patent is:

1. A device of the character described for curll5 ing the edge of a container including a support for the container, a plunger operable in the support, a vertically slidable carriage, means for holding the carriage normally in raised position,

means for lowering the carriage, means sup- 2o ported by the carriage and adapted to be engaged with the edge or the container for curling the same, and means forming a part or the carriage adapted .to be engaged with the plunger for operating the plunger to raise the contain- 25 er relative to its support.

2. A device for curling the edge of a container including a supporting member and curling irons carried by the supporting member and adapted to be engaged with the edge or the container, 30 said irons being movable laterally relative to the supporting member. v

3. A device tor curling the edge or a container including a supporting member and laterally slidable curling irons carried by the supporting 35 member and adapted to be engaged with the edge of the container.

5. A device for curling theedge of 0. contain- 45 er having a tapered wall including a supporting member movable vertically relative to the container, curling irons carried by the supporting 4 member and adapted to be engaged with the edge of the container, and means for drawing the so curling irons inwardly as the supporting membe: is moved towards the container.

6. A device for curling the edge 0! a container having a tapered wall including a supporting member movable vertically relative to the con- 66 tainer, hurling irons adapted to be engaged with the edge of the container and having a downwardly and inwardly directed portion, and means for sliding the curling irons transversely-relative to the edge of the container to permit the 60 downwardly and inwardly directed portions thereor to remain parallel with the tapered wall of the container as the supporting member is moved relative thereto.

'7. A device for curling the edge or a contain- 65 er including 'a supporting member movable'relative to the container, segmental shaped curling irons carried by, the supporting member, and means controlled by the movement or the supporting member for sliding the curling irons 7 transversely relative to the edge or the container.

8. A device or the character described forcm'ling the edge of a containerincluding a support for the container, a clamping member adapted to be moved into engagement with the container 75 for clamping the same in the support, a curling iron support operable with the clamping member for a portion of its movement, means permitting continued movement of the curling iron support after the clamping member is in clamping engagement, and curling irons adaptedto be engaged with the edge of the container, said curling irons being slidable transversely relative to the edge of the container.

9. A device of the character described for curling the edge of a container including a support for the container, a clamping member adapted to be moved into engagement with the container for clamping the same in the support, a curling iron support operable with the clamping member for a portion of its movement, curling irons carried by the support, means permitting continued movement of the curling iron support after the clamping member is in clamping engagement, and means for sliding the curling irons inwardly transversely of the edge of the container as the movement ofthe curling iron. support. is continued relativeto the clamping member.

10. A device of the character described for curling the edge of a container including a support for the container, a clamping member adapted tobe moved into engagement with the container for clamping the same in the support, a curling iron support initially movable with the clamping member towards the edge of the container, means permitting continued movement of the curling iron support relative to the clamping member after the clamping memberhas reached its clamping position, curling irons car-- ried by the curling iron support, means for sliding the curling irons inwardly transversely of the edge of the container as the support continues its movement relative to the clamping member, and means for moving 'the curling irons outwardly transversely of the edge of the container as the curling iron support is raised and the clamping member is disengaged from the container. v

11. A device of the character described for curling the edge of a container including a support for the container, a clamping member adapted to be moved into engagement with the container for clamping the same in the support, a curling iron support initially movable with the clamping member towards the edge of the container, means permitting continued movement of the curling iron support relative to the clamping member after the clamping member has reached its clamping position, curling irons carried by the curling iron support, each of said curling irons having a projection extending downwardly at an angle therefrom, means engageable with the projections for sliding the curling irons inwardly transversely of the edge of the container as the curling iron support continues its movement relative to the clamping member, and means engageable with the projections for sliding the curling irons outwardly transversely of the edge of the container as the curling iron support and clamping member are raised to their normal position.

12. A device 01' the character described for curling the edge of a container including a support for the container, curling irons, and means for simultaneously moving the curling irons downwardly and transversely with respect to the edge of the container.

13. A device of the character described for curling the edge of a container including a support for the container, curling irons, and means for simultaneously moving the curling irons vertically and transversely with respect to the edge of the container.

14. A device of the character described for curling the edge of a container including a sup I port for the container, curling irons, and meansfor simultaneously movingthe curling irons downwardly and transversely inwardly relative to the edge of the container.

15. A device of the character described for curling the edge of a container including a support for the container, curling irons, and means for simultaneously moving the curling irons upwardly and transversely outward relative to the edge of the container.

80 17. A device of the character described for curling the edge of a container including a support for the container, a clamping member adapted to be moved into .engagement with the container for clamping thesame to the support, a curling iron support initially movable with the clamping member towards the edge of the container, means permitting continued movement of the curling iron support relative to the clamping member after the clamping member has reached its clamping position, curling irons carried by the curlingiron support, each of said curling irons having a projection extending downwardly at an angle therefrom, atapered cup-like member engageable with the projections for sliding the curling irons inwardly transversely of the edge of the container as the curling iron support continues its movement relative to the clamping member, and a wedge member engageable with the projections for sliding the curling irons out- 50 wardly transversely of the edge of the container as the curling iron support and clamping member are raised to their normal position.

18. A device of the character described for curling the edge of a container including a support for the container, a plunger operable in the support, a vertically slidable carriage, means for holding the carriage normally in raised position, means for lowering the carriage, means supported by the carriage and adapted to be engaged with the edge of the container for curling the same, and a lateral extension on the carriage adapted to be engaged-with the plunger for operating the plunger to raisethe container relative to its sup- 

